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September 28, 2016 12:19
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ViewPager Activity
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public class MainActivity extends AppCompatActivity { | |
private MainPagerAdapter mPagerAdapter; | |
private ViewPager mViewPager; | |
private Button mButton; | |
private int mSelectedPosition; | |
@Override | |
protected void onCreate(Bundle savedInstanceState) { | |
super.onCreate(savedInstanceState); | |
setContentView(R.layout.a_main); | |
mViewPager = (ViewPager) findViewById(R.id.a_main_viewpager); | |
mButton = (Button) findViewById(R.id.a_main_btn_change_fragment); | |
mPagerAdapter = new MainPagerAdapter(getSupportFragmentManager()); | |
mViewPager.setAdapter(mPagerAdapter); | |
mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() { | |
@Override | |
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { | |
} | |
@Override | |
public void onPageSelected(int position) { | |
mSelectedPosition = position; | |
switch (position) { | |
case 0: { | |
setTitle("Text"); | |
break; | |
} | |
case 1: { | |
setTitle("Background"); | |
break; | |
} | |
} | |
} | |
@Override | |
public void onPageScrollStateChanged(int state) { | |
} | |
}); | |
mButton.setOnClickListener(new View.OnClickListener() { | |
@Override | |
public void onClick(View v) { | |
BaseFragment fragment = mPagerAdapter.getItem(mSelectedPosition); | |
fragment.change(); | |
} | |
}); | |
} | |
} |
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